# CVE-2026-92416: Open5GS assertion failure in PFCP Session Report Request handling

Source: https://junglewise.ai/threats/cve-2026-92416-open5gs-assertion-failure-in-pfcp-session-report-request-handling  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-09-16. Updated: 2026-09-26  
License: CC BY 4.0 with a link back

CVE-2026-92416 · Severity: medium · CVSS 4.3 · Published 2026-09-16

Open5GS is an open-source implementation of 5G core network infrastructure. A vulnerability in the PFCP Session Report Request handler causes the service to crash (assertion failure) when it receives a malformed network request. An attacker on the network can trigger this crash remotely, disrupting 5G core network operations and causing service unavailability.

Technologies: [Open5GS](https://junglewise.ai/threats/technologies/open5gs). Vendors: [Open5GS](https://junglewise.ai/threats/vendors/open5gs).

## Quick answers

**Is CVE-2026-92416 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-92416 being exploited in the wild.

**How severe is CVE-2026-92416?** Medium severity, with a CVSS score of 4.3, published 16 September 2026.

**Which products and versions are affected?** Open5GS up to 2.8.0.

**Is there a fix for CVE-2026-92416?** A patch was published on 2026-08-31: Patch commit e5f0c06d0f2d9613b003daa1cfa3ba8a4bd157e9 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-92416 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-92416?** Check whether you run Open5GS at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a reachable assertion failure in the smf_n4_handle_session_report_request function in src/smf/n4-handler.c. When a malformed PFCP Session Report Request is received, the handler incorrectly treats it as a session release request, leading to an assertion failure during session deletion. The issue affects PFCP (Packet Forwarding Control Protocol) processing in the Session Management Function (SMF) component. The attack is network-reachable and requires no authentication. An attacker can send a specially crafted PFCP message to trigger the assertion and cause a denial of service. The vulnerability is fixed in commit e5f0c06d0f2d9613b003daa1cfa3ba8a4bd157e9, which separates PFCP error handling from session release logic.

## Affected products

- Open5GS Open5GS up to 2.8.0

## Timeline

- 2026-09-16: disclosed
- 2026-08-31: patched: Patch commit e5f0c06d0f2d9613b003daa1cfa3ba8a4bd157e9

## References

- [https://github.com/open5gs/open5gs/](https://github.com/open5gs/open5gs/)
- [https://github.com/open5gs/open5gs/commit/e5f0c06d0f2d9613b003daa1cfa3ba8a4bd157e9](https://github.com/open5gs/open5gs/commit/e5f0c06d0f2d9613b003daa1cfa3ba8a4bd157e9)

## Related threats

- [Open5GS HTTP/2 SBI server memory exhaustion](https://junglewise.ai/threats/cve-2026-106806-a-memory-exhaustion-issue-exists-in-open5gs-v2-8-0-in-the-http-2)
- [open5GS PFCP transaction handling denial of service](https://junglewise.ai/threats/cve-2026-106807-a-denial-of-service-vulnerability-exists-in-open5gs-v2-8-0-in)
- [Open5GS heap out-of-bounds write in multipart parsing](https://junglewise.ai/threats/cve-2026-116543-open5gs-1-3-0-through-2-8-0-contains-a-heap-out-of-bounds-write)
- [Open5GS assertion failure in SGSN context request handling](https://junglewise.ai/threats/cve-2026-108105-open5gs-through-2-8-0-contains-a-reachable-assertion)
- [Open5GS heap out-of-bounds read in PFCP parsing](https://junglewise.ai/threats/cve-2026-108103-open5gs-through-2-8-0-contains-a-heap-out-of-bounds-read)